句型转换。
1. This pen is hers. (就画线部分提问)
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2. I'm from America. (就画线部分提问)
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3. It will start at three o'clock. (就画线部分提问)
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4. Do you like playing badminton? (作肯定回答)
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5. His birthday is on March 8th. (就画线部分提问)
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